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Int. J. Mol. Sci. 2008, 9(3), 229-234;

PI Polynomial of V-Phenylenic Nanotubes and Nanotori

The Organization for Educational Research and Planning (OERP), Iran
Department of Mathematics, Islamic Azad University, Garmsar Branch, Garmsar, Iran
Department of Mathematics and Statistics, Shahid Beheshti University, Tehran, Iran
Author to whom correspondence should be addressed.
Received: 22 October 2007 / Revised: 26 November 2007 / Accepted: 4 December 2007 / Published: 28 February 2008
(This article belongs to the Section Physical Chemistry, Theoretical and Computational Chemistry)
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The PI polynomial of a molecular graph is defined to be the sum X|E(G)|−N(e) + |V(G)|(|V(G)|+1)/2 − |E(G)| over all edges of G, where N(e) is the number of edges parallel to e. In this paper, the PI polynomial of the phenylenic nanotubes and nanotori are computed. Several open questions are also included. View Full-Text
Keywords: PI polynomial; molecular graph; phenylenic nanotube and nanotorus. PI polynomial; molecular graph; phenylenic nanotube and nanotorus.

This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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MDPI and ACS Style

Alamian, V.; Bahrami, A.; Edalatzadeh, B. PI Polynomial of V-Phenylenic Nanotubes and Nanotori. Int. J. Mol. Sci. 2008, 9, 229-234.

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